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authorKiyoshi Ueda <k-ueda@ct.jp.nec.com>2008-09-18 10:45:38 -0400
committerJens Axboe <jens.axboe@oracle.com>2008-10-09 08:56:18 +0200
commit82124d60354846623a4b94af335717a5e142a074 (patch)
treeaf7b98d5ef57483cfac53cc4866194391c3ff7b7 /fs/dquot.c
parent32fab448e5e86694beade415e750363538ea5f49 (diff)
block: add request submission interface
This patch adds blk_insert_cloned_request(), a generic request submission interface for request stacking drivers. Request-based dm will use it to submit their clones to underlying devices. blk_rq_check_limits() is also added because it is possible that the lower queue has stronger limitations than the upper queue if multiple drivers are stacking at request-level. Not only for blk_insert_cloned_request()'s internal use, the function will be used by request-based dm when the queue limitation is modified (e.g. by replacing dm's table). Signed-off-by: Kiyoshi Ueda <k-ueda@ct.jp.nec.com> Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'fs/dquot.c')
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